David P Posted November 29, 2022 Share Posted November 29, 2022 Just had this beauty come into the shop. Truck is in very good condition. Great looking truck. A couple of back yard mechanics have worked on it and have the wiring way off. Then it comes here. It's been years since I worked on a positive ground system. If I remember, the coils wire negative side to distributor on both ground systems. Am I correct in my thinking? Also, an electric fuel pump has been added. Came in here with a manual regulator set at 3 lbs. pressure. is this correct? Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/70777-56-b58-707gas-fire-truck/ Share on other sites More sharing options...
mackdump600@yahoo.com Posted November 29, 2022 Share Posted November 29, 2022 Yes I believe you are right on both of them call for 3 to 4 pound pressure on the fuel put a pyrometer on it a few inches past the exhaust manifold and watch your temperature it will go to 1500 degrees real quick Quote Link to comment https://www.bigmacktrucks.com/topic/70777-56-b58-707gas-fire-truck/#findComment-516394 Share on other sites More sharing options...
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